The last event had nothing but Crystals, basically. Do you really think non-lightsaber users really cared about those special green/black crystals? What's the difference?
I notice the colors coming out of my sniper rifle. I mean, you don't?
Crystals were actively usable by every single PC in the game. Don't talk to me about things for companions. Companions are of marginal value at 50. I'm certainly not worried about earning 'rewards' for them.